Childbirth Educator Anatomy and Physiology of Pregnancy

Question 1

Which hormone is primarily responsible for maintaining the uterine lining during early pregnancy until the placenta takes over?

Accepted Answer

Progesterone

Answer

Estrogen

Answer

Human chorionic gonadotropin (hCG)

Answer

Oxytocin

Question 2

By approximately which week of gestation does the placenta fully take over hormone production from the corpus luteum?

Accepted Answer

Week 10

Answer

Week 6

Answer

Week 16

Answer

Week 20

Question 3

What is the term for the softening and increased flexibility of the cervix that occurs during pregnancy?

Accepted Answer

Goodell's sign

Answer

Ripening

Answer

Effacement

Answer

Hegar's sign

Question 4

The increase in maternal blood volume during pregnancy is approximately what percentage above pre-pregnancy levels?

Accepted Answer

40–50%

Answer

10–15%

Answer

20–25%

Answer

60–70%

Question 5

Which ligament supports the uterus and is commonly the source of round ligament pain during pregnancy?

Accepted Answer

Round ligament

Answer

Broad ligament

Answer

Uterosacral ligament

Answer

Cardinal ligament

Question 6

Which of the following correctly describes the function of amniotic fluid?

Accepted Answer

Cushions the fetus and maintains temperature

Answer

Provides nutrition directly to the fetus

Answer

Protects the fetus from infection via antibodies

Answer

Regulates maternal blood pressure

Question 7

Relaxin, a hormone released during pregnancy, primarily affects which system?

Accepted Answer

Musculoskeletal system

Answer

Cardiovascular system

Answer

Respiratory system

Answer

Renal system